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ptime.h
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ptime.h
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// ptime header file
// G. Hobbs, S. Dai
//
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
typedef struct vMises {
double concentration; // Concentration of each component
double height; // Height of each component
double centroid; // Centroid of each component
double concentration_err; // error of Concentration
double height_err; // error of Height
double centroid_err; // error of Centroid
} vMises;
typedef struct component {
int Comp;
int nVm; // Number of components for each channel for each Stokes
vMises *vonMises;
int vmMemoryAllocated;
int nVmAllocated;
} component;
/*
typedef struct component {
double concentration; // Concentration of each component
double height; // Height of each component
double centroid; // Centroid of each component
double concentration_err; // error of Concentration
double height_err; // error of Height
double centroid_err; // error of Centroid
} component;
*/
typedef struct polStruct {
int stokes; // 1 = I, 2 = Q, 3 = U, 4 = V
int nComp; // Number of components for each channel for each Stokes
int allVm;
component *comp;
int compMemoryAllocated;
int nCompAllocated;
} polStruct;
typedef struct channelStruct {
int nstokes; // 1 = I, 4 = I,Q,U,V
double freqLow;
double freqHigh;
polStruct *pol;
int polMemoryAllocated;
int nPolAllocated;
} channelStruct;
typedef struct tmplStruct {
// Common to all templates
char dte[1024]; // Date template made
char user[1024]; // Person who made the template
float templateVersion; // Version of template header
char source[128]; // Source name
char profileFile[1024]; // Profile file name
char units[1024]; // Unit definition
double dedispersed; // = 0 by default
int nchan; // Number of channels
channelStruct *channel; // Channels
int channelMemoryAllocated;
int nChannelAllocated;
} tmplStruct;
// Initialises the template, but does not allocate memory for the profiles
// This routine should be called at the start of the program
void initialiseTemplate(tmplStruct *tmpl)
{
strcpy(tmpl->dte,"UNSET");
strcpy(tmpl->user,"UNSET");
tmpl->templateVersion = 0;
strcpy(tmpl->source,"UNSET");
strcpy(tmpl->profileFile,"UNSET");
strcpy(tmpl->units,"UNSET");
tmpl->dedispersed = 0;
tmpl->nchan = 0;
tmpl->channelMemoryAllocated=0;
tmpl->nChannelAllocated=0;
}
// Reads a template from disk
void readTemplate_ptime(char *file,tmplStruct *tmpl)
{
FILE *fin;
int i;
char line[4096];
char firstword[4096];
char dummy[4096];
int nchan=-1;
int nstokes=1;
int chan,stokes,comp,ivm,icomp;
char stokesStr[1024];
double f1,f2;
// Read primary header
if (!(fin = fopen(file,"r"))){
printf("Unable to open file: >%s<\n",file);
exit(1);
}
while (!feof(fin))
{
if (fgets(line,4096,fin) != NULL){
if (line[0] == '#') // Comment line
{
// Do nothing
}
else {
sscanf(line,"%s",firstword);
if (strcasecmp(firstword,"TEMPLATE_VERSION:")==0)
{
sscanf(line,"%s %f",dummy,&(tmpl->templateVersion));
//printf("%f\n", dummy);
}
else if (strcasecmp(firstword,"SOURCE:")==0)
sscanf(line,"%s %s",dummy,(tmpl->source));
else if (strcasecmp(firstword,"PROFILE_FILE:")==0)
sscanf(line,"%s %s",dummy,(tmpl->profileFile));
else if (strcasecmp(firstword,"DATE:")==0)
sscanf(line,"%s %s",dummy,(tmpl->dte));
else if (strcasecmp(firstword,"UNITS:")==0)
sscanf(line,"%s %s",dummy,(tmpl->units));
else if (strcasecmp(firstword,"ID:")==0)
sscanf(line,"%s %s",dummy,(tmpl->user));
else if (strcasecmp(firstword,"DM_CORRECTION:")==0)
sscanf(line,"%s %lf",dummy,&(tmpl->dedispersed));
else if (strcasecmp(firstword,"NCHAN:")==0)
sscanf(line,"%s %d",dummy,&nchan);
else if (strcasecmp(firstword,"STOKES:")==0)
{
sscanf(line,"%s %s",dummy,stokesStr);
if (strcmp(stokesStr,"I")==0)
nstokes=1;
else if (strcmp(stokesStr,"Q")==0 || strcmp(stokesStr,"U")==0 || strcmp(stokesStr,"V")==0)
nstokes=4;
}
}
}
}
fclose(fin);
// Do some checks
if (nchan < 0){
printf("Have not defined any channels. Unable to continue\n");
exit(1);
}
// Allocate memory for these channels
tmpl->nchan = nchan;
if (tmpl->channelMemoryAllocated == 0){
if (!(tmpl->channel = (channelStruct *)malloc(sizeof(channelStruct)*nchan))){
printf("ERROR in allocated memory for channels\n");
exit(1);
}
tmpl->channelMemoryAllocated = 1;
tmpl->nChannelAllocated = nchan;
for (i=0;i<nchan;i++)
tmpl->channel[i].polMemoryAllocated = 0;
}
chan = -1;
stokes = -1;
comp=-1;
// Now read the data
if (!(fin = fopen(file,"r"))){
printf("Unable to open file: >%s<\n",file);
exit(1);
}
while (!feof(fin))
{
if (fgets(line,4096,fin)!=NULL)
{
if (line[0] == '#') // Comment line
{
// Do nothing
}
else
{
sscanf(line,"%s",firstword);
if (strcasecmp(firstword,"STOKES:")==0)
{
sscanf(line,"%s %s",dummy,stokesStr);
if (strcmp(stokesStr,"I")==0)
stokes=0;
else if (strcmp(stokesStr,"Q")==0)
stokes = 1;
else if (strcmp(stokesStr,"U")==0)
stokes = 2;
else if (strcmp(stokesStr,"V")==0)
stokes = 3;
}
else if (strcasecmp(firstword,"FREQUENCY_RANGE:")==0)
{
if (stokes==0)
chan++;
sscanf(line,"%s %lf %lf",dummy,&f1,&f2);
if (f1 < f2)
{
tmpl->channel[chan].freqLow = f1;
tmpl->channel[chan].freqHigh = f2;
//printf("%lf %lf\n",tmpl->channel[chan].freqLow,tmpl->channel[chan].freqHigh);
}
else
{
tmpl->channel[chan].freqLow = f2;
tmpl->channel[chan].freqHigh = f1;
}
tmpl->channel[chan].nstokes = nstokes;
// Allocate memory
if (tmpl->channel[chan].polMemoryAllocated==0)
{
if (!(tmpl->channel[chan].pol = (polStruct *)malloc(sizeof(polStruct)*nstokes)))
{
printf("Error in allocated memory for Stokes\n");
exit(1);
}
tmpl->channel[chan].polMemoryAllocated = 1;
for (i=0;i<nstokes;i++)
tmpl->channel[chan].pol[i].compMemoryAllocated = 0;
}
// }
tmpl->channel[chan].nPolAllocated = nstokes;
}
/*
// not using group of Von Mises
else if (strcasecmp(firstword,"NCOMP:")==0)
{
int ncomp;
sscanf(line,"%s %d",dummy,&ncomp);
tmpl->channel[chan].pol[stokes].stokes = stokes;
tmpl->channel[chan].pol[stokes].nComp = ncomp;
if (tmpl->channel[chan].pol[stokes].compMemoryAllocated==0)
{
if (!(tmpl->channel[chan].pol[stokes].comp = (component *)malloc(sizeof(component)*ncomp)))
{
printf("Error in allocated memory for components\n");
exit(1);
}
tmpl->channel[chan].pol[stokes].compMemoryAllocated = 1;
}
tmpl->channel[chan].pol[stokes].nCompAllocated = ncomp;
//printf ("%d\n",ncomp);
}
else if (strcasecmp(firstword,"NVonMises:")==0)
{
int nAllVm;
sscanf(line,"%s %d",dummy,&nAllVm);
tmpl->channel[chan].pol[stokes].allVm = nAllVm;
//printf ("%d\n",nAllVm);
tmpl->channel[chan].pol[stokes].nCompAllocated = nAllVm;
comp=0;
icomp=0;
ivm=0;
}
else // Look for the number of Von Mises for each component
{
char substr[4096];
strcpy(substr,firstword);
substr[4]='\0';
if (strcasecmp(substr,"VonM")==0)
{
//printf ("%d\n",comp);
tmpl->channel[chan].pol[stokes].comp[comp].vmMemoryAllocated=0;
sscanf(line,"%s %d",dummy, &(tmpl->channel[chan].pol[stokes].comp[comp].nVm));
//printf ("COMP%d has %d Von Mises functions\n",comp+1, tmpl->channel[chan].pol[stokes].comp[comp].nVm);
if (tmpl->channel[chan].pol[stokes].comp[comp].vmMemoryAllocated==0)
{
if (!(tmpl->channel[chan].pol[stokes].comp[comp].vonMises = (vMises *)malloc(sizeof(vMises)*tmpl->channel[chan].pol[stokes].comp[comp].nVm)))
{
printf("Error in allocated memory for components\n");
exit(1);
}
tmpl->channel[chan].pol[stokes].comp[comp].vmMemoryAllocated = 1;
//printf ("%d\n",tmpl->channel[chan].pol[stokes].comp[comp].vmMemoryAllocated);
}
tmpl->channel[chan].pol[stokes].comp[comp].nVmAllocated = tmpl->channel[chan].pol[stokes].comp[comp].nVm;
comp++;
}
else if (strcasecmp(substr,"COMP")==0)
{
//printf ("%d\n",tmpl->channel[chan].pol[stokes].comp[icomp].nVm);
if (ivm != tmpl->channel[chan].pol[stokes].comp[icomp].nVm-1)
{
sscanf(line,"%s %lf %lf %lf %lf %lf %lf",dummy,
&(tmpl->channel[chan].pol[stokes].comp[icomp].vonMises[ivm].height),
&(tmpl->channel[chan].pol[stokes].comp[icomp].vonMises[ivm].height_err),
&(tmpl->channel[chan].pol[stokes].comp[icomp].vonMises[ivm].concentration),
&(tmpl->channel[chan].pol[stokes].comp[icomp].vonMises[ivm].concentration_err),
&(tmpl->channel[chan].pol[stokes].comp[icomp].vonMises[ivm].centroid),
&(tmpl->channel[chan].pol[stokes].comp[icomp].vonMises[ivm].centroid_err));
//printf("%lf %lf %lf\n",tmpl->channel[chan].pol[stokes].comp[icomp].vonMises[ivm].height,tmpl->channel[chan].pol[stokes].comp[icomp].vonMises[ivm].concentration,tmpl->channel[chan].pol[stokes].comp[icomp].vonMises[ivm].centroid);
//printf ("%d %d\n",ivm, icomp);
ivm++;
}
else
{
sscanf(line,"%s %lf %lf %lf %lf %lf %lf",dummy,
&(tmpl->channel[chan].pol[stokes].comp[icomp].vonMises[ivm].height),
&(tmpl->channel[chan].pol[stokes].comp[icomp].vonMises[ivm].height_err),
&(tmpl->channel[chan].pol[stokes].comp[icomp].vonMises[ivm].concentration),
&(tmpl->channel[chan].pol[stokes].comp[icomp].vonMises[ivm].concentration_err),
&(tmpl->channel[chan].pol[stokes].comp[icomp].vonMises[ivm].centroid),
&(tmpl->channel[chan].pol[stokes].comp[icomp].vonMises[ivm].centroid_err));
//printf ("%d %d\n",ivm,icomp);
icomp++;
ivm = 0;
}
//&(tmpl->channel[chan].pol[stokes].comp[comp].height),
//&(tmpl->channel[chan].pol[stokes].comp[comp].height_err),
//&(tmpl->channel[chan].pol[stokes].comp[comp].concentration),
//&(tmpl->channel[chan].pol[stokes].comp[comp].concentration_err),
//&(tmpl->channel[chan].pol[stokes].comp[comp].centroid),
//&(tmpl->channel[chan].pol[stokes].comp[comp].centroid_err));
}
}
*/
// not using group of Von Mises
else if (strcasecmp(firstword,"NCOMP:")==0)
//else if (strcasecmp(firstword,"NVonMises:")==0)
{
int nAllVm, ncomp;
sscanf(line,"%s %d",dummy,&nAllVm);
ncomp = nAllVm;
tmpl->channel[chan].pol[stokes].allVm = nAllVm;
tmpl->channel[chan].pol[stokes].stokes = stokes;
tmpl->channel[chan].pol[stokes].nComp = ncomp;
if (tmpl->channel[chan].pol[stokes].compMemoryAllocated==0)
{
if (!(tmpl->channel[chan].pol[stokes].comp = (component *)malloc(sizeof(component)*ncomp)))
{
printf("Error in allocated memory for components\n");
exit(1);
}
tmpl->channel[chan].pol[stokes].compMemoryAllocated = 1;
}
tmpl->channel[chan].pol[stokes].nCompAllocated = ncomp;
for (comp = 0; comp < tmpl->channel[chan].pol[stokes].nComp; comp++)
{
tmpl->channel[chan].pol[stokes].comp[comp].vmMemoryAllocated=0;
tmpl->channel[chan].pol[stokes].comp[comp].nVm = 1;
if (tmpl->channel[chan].pol[stokes].comp[comp].vmMemoryAllocated==0)
{
if (!(tmpl->channel[chan].pol[stokes].comp[comp].vonMises = (vMises *)malloc(sizeof(vMises)*tmpl->channel[chan].pol[stokes].comp[comp].nVm)))
{
printf("Error in allocated memory for components\n");
exit(1);
}
tmpl->channel[chan].pol[stokes].comp[comp].vmMemoryAllocated = 1;
//printf ("%d\n",tmpl->channel[chan].pol[stokes].comp[comp].vmMemoryAllocated);
}
tmpl->channel[chan].pol[stokes].comp[comp].nVmAllocated = tmpl->channel[chan].pol[stokes].comp[comp].nVm;
}
icomp=0;
ivm=0;
}
else // Look for each Von Mises
{
char substr[4096];
strcpy(substr,firstword);
substr[4]='\0';
if (strcasecmp(substr,"COMP")==0)
{
sscanf(line,"%s %lf %lf %lf %lf %lf %lf",dummy,
&(tmpl->channel[chan].pol[stokes].comp[icomp].vonMises[ivm].height),
&(tmpl->channel[chan].pol[stokes].comp[icomp].vonMises[ivm].height_err),
&(tmpl->channel[chan].pol[stokes].comp[icomp].vonMises[ivm].concentration),
&(tmpl->channel[chan].pol[stokes].comp[icomp].vonMises[ivm].concentration_err),
&(tmpl->channel[chan].pol[stokes].comp[icomp].vonMises[ivm].centroid),
&(tmpl->channel[chan].pol[stokes].comp[icomp].vonMises[ivm].centroid_err));
//printf ("%d %d\n",ivm,icomp);
icomp++;
}
}
}
}
}
fclose(fin);
}
// Evaluate a single template component
double evaluateTemplateComponent(tmplStruct *tmpl,double phi,int chan,int stokes,int comp,double phiRot)
{
double result=0;
//result = tmpl->channel[chan].pol[stokes].comp[comp].height *
int k;
for (k=0;k<tmpl->channel[chan].pol[stokes].comp[comp].nVm;k++)
result += fabs(tmpl->channel[chan].pol[stokes].comp[comp].vonMises[k].height) *
exp(tmpl->channel[chan].pol[stokes].comp[comp].vonMises[k].concentration*
(cos((phi - tmpl->channel[chan].pol[stokes].comp[comp].vonMises[k].centroid - phiRot)*2*M_PI)-1));
return result;
}
// Evaluate a given frequency channel and polarisation
double evaluateTemplateChannel(tmplStruct *tmpl,double phi,int chan,int stokes,double phiRot)
{
double result=0;
int k;
for (k=0;k<tmpl->channel[chan].pol[stokes].nComp;k++)
result += evaluateTemplateComponent(tmpl,phi,chan,stokes,k,phiRot);
return result;
}
// Allocate specific amount of memory
void allocateMemoryTemplateDefault(tmplStruct *tmpl,int nchan,int npol,int ncomp,int nvm)
{
int i,j,k;
tmpl->channel = (channelStruct *)malloc(sizeof(channelStruct)*nchan);
tmpl->channelMemoryAllocated = 1;
tmpl->nChannelAllocated = nchan;
for (i=0;i<nchan;i++)
{
tmpl->channel[i].pol = (polStruct *)malloc(sizeof(polStruct)*npol);
tmpl->channel[i].polMemoryAllocated = 1;
tmpl->channel[i].nPolAllocated = npol;
for (j=0;j<npol;j++)
{
tmpl->channel[i].pol[j].comp = (component *)malloc(sizeof(component)*ncomp);
tmpl->channel[i].pol[j].compMemoryAllocated = 1;
tmpl->channel[i].pol[j].nCompAllocated = ncomp;
for (k=0;k<ncomp;k++)
{
tmpl->channel[i].pol[j].comp[k].vonMises = (vMises *)malloc(sizeof(vMises)*nvm);
tmpl->channel[i].pol[j].comp[k].vmMemoryAllocated = 1;
tmpl->channel[i].pol[j].comp[k].nVmAllocated = nvm;
}
}
}
}
void saveTemplate(char *fname,tmplStruct *tmpl)
{
FILE *fout;
char version[128] = "1.0";
int i,j,k,h;
double centre;
if (!(fout = fopen(fname,"w")))
{
printf("Unable to open file %s\n",fname);
return;
}
fprintf(fout,"TEMPLATE_VERSION: %s\n",version);
fprintf(fout,"PROFILE_FILE: %s\n",tmpl->profileFile);
fprintf(fout,"SOURCE: %s\n",tmpl->source);
fprintf(fout,"DATE: %s\n",tmpl->dte);
fprintf(fout,"ID: %s\n",tmpl->user);
fprintf(fout,"UNITS: %s\n",tmpl->units);
fprintf(fout,"NCHAN: %d\n",tmpl->nchan);
for (i=0;i<tmpl->nchan;i++)
{
fprintf(fout,"#\n");
for (j=0;j<tmpl->channel[i].nstokes;j++)
{
fprintf(fout,"#\n");
if (tmpl->channel[i].pol[j].stokes == 0)
fprintf(fout,"STOKES: I\n");
else if (tmpl->channel[i].pol[j].stokes == 1)
fprintf(fout,"STOKES: Q\n");
else if (tmpl->channel[i].pol[j].stokes == 2)
fprintf(fout,"STOKES: U\n");
else if (tmpl->channel[i].pol[j].stokes == 3)
fprintf(fout,"STOKES: V\n");
fprintf(fout,"FREQUENCY_RANGE: %f %f\n",tmpl->channel[i].freqLow,tmpl->channel[i].freqHigh);
fprintf(fout,"NCOMP: %d\n",tmpl->channel[i].pol[j].nComp);
fprintf(fout,"NVonMises: %d\n", tmpl->channel[i].pol[j].allVm);
for (k=0;k<tmpl->channel[i].pol[j].nComp;k++)
{
fprintf(fout,"VonM: %d\n", tmpl->channel[i].pol[j].comp[k].nVm);
}
for (k=0;k<tmpl->channel[i].pol[j].nComp;k++)
{
for (h=0;h<tmpl->channel[i].pol[j].comp[k].nVm;h++)
{
centre = tmpl->channel[i].pol[j].comp[k].vonMises[h].centroid;
if (centre > 1) centre-=1;
if (centre < 0) centre+=1;
//fprintf(fout,"COMP%d%d: %g %g %g %g %g %g\n",k+1,h+1,tmpl->channel[i].pol[j].comp[k].vonMises[h].height,
fprintf(fout,"COMP%d: %.4lf %.6lf %.4lf %.6lf %.8lf %.10lf\n",k+1,tmpl->channel[i].pol[j].comp[k].vonMises[h].height,
tmpl->channel[i].pol[j].comp[k].vonMises[h].height_err,
tmpl->channel[i].pol[j].comp[k].vonMises[h].concentration,
tmpl->channel[i].pol[j].comp[k].vonMises[h].concentration_err,
centre,
tmpl->channel[i].pol[j].comp[k].vonMises[h].centroid_err);
//fprintf(fout,"COMP%d: %g %g %g\n",k+1,tmpl->channel[i].pol[j].comp[k].height,
// tmpl->channel[i].pol[j].comp[k].concentration,
// centre);
}
}
}
}
fclose(fout);
}